A novel thermally stable energetic material, 4-amino-2, 6-bis(5-amino-1H-tetrazol)-3, 5-dinitropyridine(ABDP) was first synthesized via two-step reactions of nitration and condensation reaction using 4-amino-2, 6-dichloropyridine as a raw material with a total yield of 36%, and its structure was characterized by nuclear magnetic resonance (NMR), mass spectrum (MS) and elemental analysis. Condensation reaction of 3-amino-1, 2, 4-triazole or 5-amino-1H-tetrazole and 4-amino-2, 6-dichloro-3, 5-dinitropyridine was investigated. Its thermal properties were studied by thermogravimetry(TG) and differential scanning calorimetry(DSC). Results show that similar nucleophilicity occurs at primary amine and secondary amine of 3-amino-1, 2, 4-triazole, but secondary amine in 5-amino-1H-tetrazole has higher nucleophilicity than that of primary amine. ABDP has a thermal decomposition peak at 323 ℃ accompanied with 94% mass loss. The detonation velocity and detonation pressure of 4-amino-2, 6-bis(5-amino-1H-tetrazol)-3, 5-dinitropyridine are predicted by Rothstein's method with the values of 8823 m·s^-1 and 36.72 GPa, respectively.